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    SYSTEM FOR SIMULTANEOUSLY MEASURING SIX-DEGREE-OF-FREEDOM ERRORS IN WAY THAT DOUBLE-FREQUENCY LASERS ARE COUPLED BY SINGLE OPTICAL FIBER
    4.
    发明公开
    SYSTEM FOR SIMULTANEOUSLY MEASURING SIX-DEGREE-OF-FREEDOM ERRORS IN WAY THAT DOUBLE-FREQUENCY LASERS ARE COUPLED BY SINGLE OPTICAL FIBER 有权
    用单光纤耦合双频激光器以同时测量六自由度误差的系统

    公开(公告)号：EP3190381A1

    公开(公告)日：2017-07-12

    申请号：EP14853173.4

    申请日：2014-09-03

    申请人： Beijing Jiaotong University

    发明人： FENG, Qibo ,  ZHANG, Bin ,  GAO, Zhan ,  CUI, Cunxing

    IPC分类号： G01B11/02 ,  G01B11/03

    CPC分类号： G01B11/002 ,  G01B9/02003 ,  G01B9/02019 ,  G01B9/02029 ,  G01B11/02 ,  G01B11/03 ,  G01B11/24 ,  G01B11/26 ,  G01B2290/70 ,  G01D5/266

    摘要： A six degree of freedom laser simultaneous measurement system, wherein a laser emitting unit is separated from a fixed sensor head; the laser emitting unit is connected with the fixed sensor head by a single polarization maintaining fiber; a moving unit comprising the reflector and the beam splitter is mounted on the linear guide; utilizing of the single polarization maintaining fiber, which connects the laser emitting unit with the fixed sensor head, reduces the influence of heat generated by laser source on the measurement accuracy, and makes the system more compact and integrated. The six degree of freedom errors, including position error, horizontal and vertical straightness errors, pitch, raw and roll, can be measured simultaneously by only one incident light. The non-cable connection on the moving unit makes long-distance and in-situ measurement possible ( Fig. 2 ).

    摘要翻译： 一种六自由度激光同时测量系统，其中激光发射单元与固定的传感头分离; 激光发射单元通过单个保偏光纤与固定传感头连接; 包括反射器和分束器的移动单元安装在线性导轨上; 利用连接激光发射单元和固定传感头的单偏振保持光纤，减少了激光源产生的热量对测量精度的影响，使系统更加紧凑和集成化。 只有一个入射光可以同时测量六个自由度误差，包括位置误差，水平和垂直直线度误差，螺距，原始和滚动。 移动装置上的非电缆连接可以进行长距离和现场测量（图2）。

    INSTANTANEOUS PHASE-SHIFT INTERFEROMETER AND MEASUREMENT METHOD
    6.
    发明公开
    INSTANTANEOUS PHASE-SHIFT INTERFEROMETER AND MEASUREMENT METHOD 审中-公开
    发言人表示感谢

    公开(公告)号：EP3118571A1

    公开(公告)日：2017-01-18

    申请号：EP16001456.9

    申请日：2016-06-29

    申请人： Mitutoyo Corporation

    发明人： KAWASAKI, Kazuhiko ,  MATSUURA, Shinpei

    IPC分类号： G01B9/02 ,  G01B11/24

    CPC分类号： G01B9/0201 ,  G01B9/02 ,  G01B9/02027 ,  G01B11/24 ,  G01B11/2441 ,  G01B2290/70

    摘要： An instantaneous phase-shift interferometer uses a light source having a coherence length shorter than a difference in optical path length between the light reflected from a reference surface and the light reflected from a measured surface. A beam from the light source is split and, using an adjustable delay optical path, a first beam is delayed to cause a difference in optical path length and is superimposed on the same optical axis as a second beam, after which the reference beam and the measurement beam are generated. The optical path length of the delay optical path is changed during adjustment, a plurality of interference fringe images are individually captured, and at least one of a bias, amplitude, and phase shift amount of the interference fringes obtained in each of the interference fringe images is calculated. A shape of a measured object is measured based on bias calculation results, amplitude calculation results, and phase shift amount calculation results.

    摘要翻译： 瞬时相移干涉仪使用相干长度短于从参考表面反射的光与从测量表面反射的光之间的光程长度差的光源。 来自光源的光束被分离，并且使用可调节的延迟光路，第一光束被延迟以引起光路长度的差异并且叠加在与第二光束相同的光轴上，之后参考光束和 产生测量光束。 在调整期间改变延迟光路的光路长度，分别捕获多个干涉条纹图像，并且在每个干涉条纹图像中获得的干涉条纹的偏移，幅度和相移量中的至少一个 被计算。 基于偏差计算结果，振幅计算结果和相移量计算结果测量测量对象的形状。

    POLARIZATION-SENSITIVE OCT APPARATUS AND METHOD FOR CONTROLLING THE SAME
    7.
    发明公开
    POLARIZATION-SENSITIVE OCT APPARATUS AND METHOD FOR CONTROLLING THE SAME 审中-公开
    VERFAHREN ZUR STEUERUNG DAVON的VARRISCH

    公开(公告)号：EP3110307A1

    公开(公告)日：2017-01-04

    申请号：EP15712437.1

    申请日：2015-02-10

    申请人： Canon Kabushiki Kaisha

    发明人： FUKUHARA, Makoto ,  SATO, Makoto ,  TOMATSU, Nobuhiro ,  SUMIYA, Toshiharu

    IPC分类号： A61B3/10 ,  G01B9/02

    CPC分类号： G01B9/02011 ,  A61B3/102 ,  G01B9/02067 ,  G01B9/02091 ,  G01B2290/70

    摘要： A polarization-sensitive OCT apparatus includes an interference unit configured to split light emitted from a light source into measurement light and reference light and to generate interfered light by causing returning light of the measurement light that has irradiated a subject to interfere with the reference light that has traveled through a reference arm, a splitting unit configured to split the interfered light into different polarization components, a generation unit configured to detect the polarization components split by the splitting unit and to generate a signal, detection units configured to detect respective polarization states of the measurement light in a sample arm, the returning light of the measurement light that has passed through the interference unit, and the reference light that has passed through the interference unit, and polarization control units configured to control the respective polarization states on the basis of the respective polarization states that have been detected.

    摘要翻译： 偏振敏感OCT装置包括干涉单元，其被配置为将从光源发射的光分解为测量光和参考光，并且通过使已经照射对象的测量光的返回光干涉参考光而产生干涉光， 已经行进了参考臂，分配单元被配置为将受干扰的光分成不同的偏振分量;生成单元，被配置为检测由分割单元分离的偏振分量并产生信号;检测单元，被配置为检测相应的偏振态 样本臂中的测量光，已经通过干涉单元的测量光的返回光和通过干涉单元的参考光，以及偏振控制单元，被配置为基于 各自的极化状态哈 已被检测到。

    INTERFEROMETER SYSTEMS
    8.
    发明公开
    INTERFEROMETER SYSTEMS 审中-公开
    干涉仪

    公开(公告)号：EP2627966A4

    公开(公告)日：2016-12-21

    申请号：EP11832980

    申请日：2011-09-21

    申请人： FIBERSONICS INC

    发明人： TAPANES EDWARD

    IPC分类号： G01B9/02 ,  G01D5/353 ,  G08B13/186

    CPC分类号： G01B9/02041 ,  G01B9/02 ,  G01B9/02012 ,  G01B9/02027 ,  G01B9/02049 ,  G01B9/02079 ,  G01B2290/70 ,  G01D5/35306 ,  G01D5/35325 ,  G01D5/35329 ,  G01N21/8806 ,  G01N2201/0612 ,  G01N2201/088 ,  G02B6/255 ,  G02B6/36 ,  Y10T29/49826

    摘要： A fiber-optic sensor can have a Michelson sensor portion and a Mach-Zehnder sensor portion. A first splitter-coupler can be configured to split incoming light between a first fiber portion and a second fiber portion. A first polarization-phase conjugation device can be configured to conjugate a polarization phase of incident light corresponding to the first fiber portion, and a second polarization-phase conjugation device can be configured to conjugate a polarization phase of incident light corresponding to the second fiber portion. Each of the first and second polarization-phase conjugation devices can be configured to reflect light toward a detector and through the respective first and second fiber portions. A coupler can be configured to join light in the first fiber portion with light in the second fiber portion, and a third fiber portion can be configured to receive light from the coupler and to illuminate a second detector.

    COMPACT FIBER OPTIC GEOMETRY FOR A COUNTER CHIRP FMCW COHERENT LASER RADAR
    9.
    发明公开
    COMPACT FIBER OPTIC GEOMETRY FOR A COUNTER CHIRP FMCW COHERENT LASER RADAR 审中-公开
    KOMPAKTE FASEROPTISCHE GEOMETRIEFÜREINENKOHÄRENTENFMCW-LASERRADAR MIT DOPPELCHIRP

    公开(公告)号：EP2329218A4

    公开(公告)日：2016-12-14

    申请号：EP09813673

    申请日：2009-09-11

    申请人： NIKON METROLOGY NV

    发明人： REZK MINA ,  SLOTWINSKI ANTHONY

    IPC分类号： G01B9/02 ,  G01B11/02 ,  G01S7/481 ,  G01S17/32 ,  G02B6/32

    CPC分类号： G01B9/02004 ,  G01B9/02003 ,  G01B9/02007 ,  G01B9/02027 ,  G01B9/0207 ,  G01B9/02077 ,  G01B11/026 ,  G01B2290/45 ,  G01B2290/60 ,  G01B2290/70 ,  G01S7/4818 ,  G01S17/325 ,  G02B6/32

    摘要： A system and method for determining a measured distance between a measuring device (20A) and an object (21), the system including a first laser source (13) for producing a first light beam (13A) having a first waveform (32) and a first frequency; a second laser source (11) for producing a second light beam (1 IA) having a second frequency, said second light beam (HA) having a second waveform (36), wherein said first frequency is chirped up at the first rate as said second frequency is chirped down at the first rate, and said second frequency is chirped up at the second rate as said first frequency is chirped down at the first rate; an optical element (15) for combining said first light beam (13A) with said second light beam (HA) into a combined light beam path (17), said optical element (15) splitting a returning portion of said combined light beam path (17) into a third light beam (24); and a single detector (23) for receiving said third light beam (24) including two different beat frequencies that are proportional to the measured distance.

    摘要翻译： 一种用于确定测量装置（20A）和物体（21）之间的测量距离的系统和方法，所述系统包括用于产生具有第一波形（32）的第一光束（13A）的第一激光源（13）和 第一个频率 用于产生具有第二频率的第二光束（11A）的第二激光源（11），所述第二光束（HA）具有第二波形（36），其中所述第一频率以所述第一频率被啁啾 第二频率以第一速率被啁啾，并且所述第二频率以第二速率被啁啾，因为所述第一频率以第一速率被啁啾; 用于将所述第一光束（13A）与所述第二光束（HA）组合成组合光束路径（17）的光学元件（15），所述光学元件（15）将所述组合光束路径的返回部分 17）转换成第三光束（24）; 以及用于接收所述第三光束（24）的单个检测器（23），包括与测量的距离成比例的两个不同的拍频。